31302809476 has 9 divisors (see below), whose sum is σ = 54780535831. Its totient is φ = 15651227812.

The previous prime is 31302809357. The next prime is 31302809477. The reversal of 31302809476 is 67490820313.

The square root of 31302809476 is 176926.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31302809477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 309621 + ... + 398083.

Almost surely, 2^31302809476 is an apocalyptic number.

31302809476 is the 176926-th square number.

It is an amenable number.

31302809476 is a deficient number, since it is larger than the sum of its proper divisors (23477726355).

31302809476 is an frugal number, since it uses more digits than its factorization.

31302809476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176930 (or 88465 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 31302809476 in words is "thirty-one billion, three hundred two million, eight hundred nine thousand, four hundred seventy-six".